System of equations:
- Equation 1: \( 5u - 2v + 1 = 4(2u - v) \)
- Equation 2: \( 0.2(4u + v) + 0.5 = 0.5(2u + 1) \)
Solution explanation: To solve this system of equations, we will first simplify each equation and then use either the substitution or elimination method to find the values of 'u' and 'v'.
Step-by-step solution:
- Simplify Equation 1:
\( 5u - 2v + 1 = 8u - 4v \)
Rearrange terms to group 'u' and 'v':
\( -3u + 2v = -1 \) (Equation 1 simplified) - Simplify Equation 2:
Multiply both sides by 10 to eliminate decimals:
\( 2(4u + v) + 5 = 5(2u + 1) \)
\( 8u + 2v + 5 = 10u + 5 \)
Rearrange terms:
\( -2u + 2v = 0 \) (Equation 2 simplified) - Solve the system of simplified equations:
We have:
\( -3u + 2v = -1 \)
\( -2u + 2v = 0 \)
Subtract the second simplified equation from the first:
\( (-3u + 2v) - (-2u + 2v) = -1 - 0 \)
\( -3u + 2v + 2u - 2v = -1 \)
\( -u = -1 \)
\( u = 1 \) - Substitute the value of 'u' into the second simplified equation to find 'v':
\( -2(1) + 2v = 0 \)
\( -2 + 2v = 0 \)
\( 2v = 2 \)
\( v = 1 \)
Answer: u = 1, v = 1